Understanding the Benefits and Uses of Carnitine in Health and Fitness Fitness Health The glycemic, cholesterol, and weight effects of L carnitine in diabetes: A systematic review and meta analysis of randomized controlled trials ScienceDirect The glycemic, cholesterol, and weight effects of L carnitine in diabetes: A systematic review and meta analysis of randomized controlled trials ScienceDirect What Is CoQ10 and L Carnitine, and How Can It Change Your Life? iThrive Essentials Combining Berberine and L Carnitine can be beneficial for weight management, metabolism, and overall health. Berberine may improve insulin sensitivity, lower blood sugar, and support weight loss, while L carnitine helps the body use Carnitine supplementation improves metabolic flexibility and skeletal muscle acetylcarnitine formation in volunteers with impaired glucose tolerance: A randomised controlled trial eBioMedicine